Airbnb Airbnb Interview Question 09

Most
Booked
City

Find the city with the highest number of bookings.

Table Schema

Inspect
Table

interactive

Column	Type
booking_id	integer
city	varchar

Sample Data

Sample Input: bookings

Expected Output

city	total_bookings
NYC	4

SQL Editor

Waiting for query

city	total_bookings
NYC	4

Hints

Hint 01: Identify the grouping level required by the output.

Hint 02: Aggregate with COUNT, SUM, AVG, or a window function as needed.

Hint 03: Filter after aggregation with HAVING or after ranking with an outer query.

Solution

Solution is locked until you decide to reveal it. Try the editor first, then open this when you want the reference answer.

SELECT city, COUNT(*) AS total_bookings
FROM bookings
GROUP BY city
ORDER BY total_bookings DESC
LIMIT 1;

Explanation

Read the expected output columns to determine the final grain.

Aggregate or rank the input rows to calculate the requested metric.

Filter, sort, and alias the final columns to match the output.